safford



M. SAFFORD, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND GEORGE P.KINNEY, OI! SAME PLACE.

BURNER AND WICK-TUBE FOR VAPOR-LAMPS.

Specification of Letters Patent No. 20,977, dated July 20, 1858.

To all whom it may concern:

Be it known that I, MARK SAFFORD, of Boston, in the county of Suffolkand State of Massachusetts, have invented certain new and usefulImprovements in Hydrocarbon- Vapor Burners; and I do hereby declare thatthe same is fully described and represented in the followingspecification and the accompanying drawings, of which Figure l, is aside elevation and, Fig. 2, a longitudinal section of a burnercontaining my invention.

This burner is to be applied to a fountain or oil reservoir so that itsmain wick and outer tube shall extend into the same, and be held in theneck of the reservoir by means of the screw cap, (4, shown in thedrawings, as afiixed to the said outer tube, b. This outer tube extendsabove the said cap, a, and is connected with or screwed into a vaporgenerator, 0, on whose upper end is a cup (Z, provided with a bellshaped extinguisher or cover, 6. From the cup, (Z, a tube, 7, extendsdownward within the vapor generator and opens into such cup, and another or wick tube 9, which is made foraminous or is formed withnumerous fine holes throughout it. This wick tube 9, is surrounded bythe outer tube, 7), and carries on its outer surface, the main wick, h,which is a tubular wick and is made to extend from the vapor generatorthrough and out of the tube 5.

A rod, 2', projecting from the cover or extinguisher, 0, extends throughthe tubes f, and o, and has an auxiliary wick, 7c, enveloping it and sofastened to it as to be capable of being raised or lowered with the cap,0. This auxiliary wick should closely fit the bore of the foraminouswick tube.

Surrounding the opening of the tube 7, into the cup (Z, is a series ofwires or heat conductors m, m, which, when the auxiliary wick isenfiamed, enter its flame and serve to convey heat into the vaporgenerator. Furthermore, the tube 7", is furnished with one or morelateral holes a, arranged in it as shown in Fig. 2.

The generator has a series of jet holes, as shown at, 0, 0, 0, in Fig.3, (which is a section taken on the line 00, w, of Figs. 1, and 2.)These jet holes have a closing slide, 7), applied to them and the outertube and constructed so as to be capable of being turned laterally onthe said tube and of shutting off or closing either one or more of thejet holes.

The auxiliary wick is applied to the ex tinguisher in the manner abovedescribed, in order that it may not only be drawn upward with theextinguisher and enfiamed so as to impart heat to the heat conductors orto the vaporizer in order to vaporize the liquid of the main wick, butso that subsequently it may be depressed within its tube so far belowthe jet holes 0, 0, 0, as not to be charred or burned by the heatproduced by the flame of the vapor which may issue out of such holes.

The wick tube g, is made foraminous in order that the auxiliary wick maybe supplied with the liquid hydrocarbon from the main wick, whenever theauxiliary wick may not be long enough to enter the fluid in thereservoir, or the surface of such fluid may fall below the lower end ofthe said auxiliary wick.

lVhen the wick 7c, is depressed so far as to enable the extinguisher tocover the cup or top of the vapor generator, any vapor from theauxiliary wick will not only be intercepted by the extinguisher andprevented from passing into the air outside of the burner, but suchvapor will be made to pass through the hole or holes 12-, n, and enterthe main wick, and from thence pass into the generator I claim 1. Thecombination of the auxiliar I wick with a lifter or rod, or with thesame and an extinguisher so as to enable such wick to be moved in itstube in manner and for the purpose essentially as specified.

2. I also claim in combination with the vapor generator and itsauxiliary wick tube, f, a closing cap or extinguisher and one or moreconduits n, it, applied in the wick tube substantially in manner asspecified, the whole being to produce effects as stated.

3. I also claim a foraminous wick tube, or its equivalent in itscombination with a main wick and an auxiliary wick applied to it, and tooperate with it substantially in manner, as hereinbefore explained.

In testimony whereof, I have hereunto set my signature.

MARK SAFFORD. Witnesses:

R. H. EDDY, F. P. HALE, Jr.

